Kensun 6000k H4 (Hb2) Hi/Lo HID Bi-Xenon Bulb (1 pair diamond blue color) and Colors #1 Customer Service & Quality, HID Xenon Headlight Replacement Bulbs Easy and Simple installation. Usually takes less than 20 minutes! "Plug-and-Play" in most vehicles. Some vehicles may need professional installation. The manufacturer provides free full technical support with hundreds of thousands of satisfied users. The Kensun friendly and experienced team is happy to help you with any questions or issues with the installation. Includes: pair of H4 Bi-Xenon super-bright performance hid xenon bulbs with relay harness We specialize in auto parts and universal car accessories. Upgrade your oem stock halogen or LED low beam, high beam, fog light, interior lights and all off road driving lamps. Our HID xenon headlight conversion kit and replacement bulbs are available in cool neon colors including white, blue, bright yellow, purple and pink. Available in all sizes. Confirm your bulb size at Osram Sylvania or Phillips websites or with the seller of your aftermarket projector headlight housing assemblies. Ultra Bright Fused-Quartz Xenon Bulb: Produces 3X brighter light than halogen, uses up to 80% less power, increases visibility, and has long lasting non-fading lifetime